20980152

素因数分解:

$2^3\times 3^2\times {\mathrm{211}}^1\times {\mathrm{1381}}^1$

素因数の和:1604

約数の個数: 48

約数和(自身を含む): 57131880

約数和(自身を除く): 36151728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 211, 422, 633, 844, 1266, 1381, 1688, 1899, 2532, 2762, 3798, 4143, 5064, 5524, 7596, 8286, 11048, 12429, 15192, 16572, 24858, 33144, 49716, 99432, 291391, 582782, 874173, 1165564, 1748346, 2331128, 2622519, 3496692, 5245038, 6993384, 10490076, 20980152]

約数ペア:

[(1, 20980152), (2, 10490076), (3, 6993384), (4, 5245038), (6, 3496692), (8, 2622519), (9, 2331128), (12, 1748346), (18, 1165564), (24, 874173), (36, 582782), (72, 291391), (211, 99432), (422, 49716), (633, 33144), (844, 24858), (1266, 16572), (1381, 15192), (1688, 12429), (1899, 11048), (2532, 8286), (2762, 7596), (3798, 5524), (4143, 5064)]